This can be used for adding the toolchain to an existing tree without having
to build it from scratch.
Enable building the toolchain + tarball by default on buildbot
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This can be used to tweak the buildbot behavior without having to change
buildbot's configuration.
It will also allow us to add more aggressive clean steps (e.g. on
toolchain changes), which would break developers' workflows if enable
by default.
Signed-off-by: Felix Fietkau <nbd@nbd.name>